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Biomass-derived carbon dots (CDs) are non-toxic and fluorescently stable, making them suitable for extensive application in fluorescence sensing. The use of cheap and renewable materials not only improves the utilization rate of waste resources, but it is also drawing increasing attention to and interest in the production of biomass-derived CDs. Visual fluorescence detection based on CDs is the focus of current research. This method offers high sensitivity and accuracy and can be used for rapid and accurate determination under complex conditions. This paper describes the biomass precursors of CDs, including plants, animal remains and microorganisms. The factors affecting the use of CDs as fluorescent probes are also discussed, and a brief overview of enhancements made to the preparation process of CDs is provided. In addition, the application prospects and challenges related to biomass-derived CDs are demonstrated.
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Biomasa , Carbono , Colorantes Fluorescentes , Carbono/análisis , Carbono/química , Puntos Cuánticos/análisis , Puntos Cuánticos/química , Plantas , Estructura MolecularRESUMEN
Background: Achieving universal health coverage in the African region requires health systems strengthening. Assessing and comparing health systems contributes to this process, but requires internationally comparable data. The European Observatory on Health Systems and Policies has produced Health Systems in Transition (HiT) reviews in Europe, Asia, North America and the Caribbean with a standardised template. This study explores data availability in international databases for the quantitative health and health system indicators in the HiT template for the WHO African region. Methods: We identified ten databases which contained data for 40 of the 80 original HiT indicators and an additional 23 proxy indicators to fill some gaps. We then assessed data availability for the resulting 63 indicators by country and time, i.e. first/last year of data, years of data available overall and since 2000, and we explored for each indicator (1) against the country with the greatest availability overall and (2) against annual availability for all years since 2000. Results: Overall data availability was greatest in South Africa (93.0% of possible total points) and least in South Sudan (59.5%). Since 2000, Uganda (60.4%) has had the highest data availability and South Sudan (37.2%) the lowest. By topic, data availability was the highest for health financing (91.4%; median start/end date 2000/2019) and background characteristics (88.5%; 1990/2020) and was considerably lower for health system performance (54.5%; 2000/2018) and physical and human resources (44.8%; 2004/2013). Data are available for different years in different countries, and at irregular intervals, complicating time series analysis. No data are available for service provision indicators. Conclusions: Gaps in data in international databases across time, countries, and topics undermine systematic health systems comparisons and assessments, regional health systems strengthening, and efforts to achieve universal health coverage. More efforts are needed to strengthen national data collection and management and integrate national data into international databases to support cross-country assessments, peer learning, and planning. In tandem, more research is needed to understand the specific historical, cultural, administrative, and technological determinants influencing country data availability, as well as the facilitators and barriers of data sharing between countries and international databases, and the potential of new technologies to increase timeliness of data.
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Bases de Datos Factuales , Humanos , África , Atención a la Salud , Cobertura Universal del Seguro de Salud/estadística & datos numéricos , Indicadores de Calidad de la Atención de SaludRESUMEN
Economically viable production of biobased products and fuels requires high-yielding, high-quality, sustainable process-advantaged crops, developed using bioengineering or advanced breeding approaches. Understanding which crop phenotypic traits have the largest impact on biofuel economics and sustainability outcomes is important for the targeted feedstock crop development. Here, we evaluated biomass yield and cell-wall composition traits across a large natural variant population of switchgrass (Panicum virgatum L.) grown across three common garden sites. Samples from 331 switchgrass genotypes were collected and analyzed for carbohydrate and lignin components. Considering plant survival and biomass after multiple years of growth, we found that 84 of the genotypes analyzed may be suited for commercial production in the southeastern U.S. These genotypes show a range of growth and compositional traits across the population that are apparently independent of each other. We used these data to conduct techno-economic analyses and life cycle assessments evaluating the performance of each switchgrass genotype under a standard cellulosic ethanol process model with pretreatment, added enzymes, and fermentation. We find that switchgrass yield per area is the largest economic driver of the minimum fuel selling price (MSFP), ethanol yield per hectare, global warming potential (GWP), and cumulative energy demand (CED). At any yield, the carbohydrate content is significant but of secondary importance. Water use follows similar trends but has more variability due to an increased dependence on the biorefinery model. Analyses presented here highlight the primary importance of plant yield and the secondary importance of carbohydrate content when selecting a feedstock that is both economical and sustainable.
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This review of the French health system analyses recent developments in health organization and governance, financing, healthcare provision, recent reforms and health system performance.Overall health status continues to improve in France, although geographic and socioeconomic inequalities in life expectancy persist. The health system combines a social health insurance model with an important role fortax-based revenues to finance healthcare. The health system provides universal coverage, with a broad benefits basket, but cost-sharing is required for all essential services. Private complementary insurance to cover these costs results in very low average out-of-pocket payments, although there are concerns regarding solidarity, financial redistribution and efficiency in the health system. The macroeconomic context in the last couple of years in the country has been affected by the COVID-19 pandemic, which resulted in subsequent increases of total health expenditure in France in 2020 (3.7%) and 2021 (9.8%).Healthcare provision continues to be highly fragmented in France, with a segmented approach to care organization and funding across primary, secondary and long-term care. Recent reforms aim to strengthen primarycare by encouraging multidisciplinary group practices, while public health efforts over the last decade have focused on boosting prevention strategies and tackling lifestyle risk factors, such as smoking and obesity with limited success. Continued challenges include ensuring the sustainability of the health workforce, particularly to secure adequate numbers of health professionals in medically underserved areas, such as rural and less affluent communities, and improving working conditions, remuneration and career prospects, especially for nurses, to support retention. The COVID-19 pandemic has brought to light some structural weaknesses within the French health system, but it has also provided opportunities for improving its sustainability. There has been a notable shift in the will to give more room to decision-making at the local level, involving healthcare professionals, and to find new ways of funding healthcare providers to encourage care coordination and integration.
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Atención a la Salud , Prestación Integrada de Atención de Salud , Estudios de Evaluación como Asunto , Planes de Sistemas de Salud , Reforma de la Atención de Salud , FranciaRESUMEN
An indispensable prerequisite for answering research questions in health services research is the availability and accessibility of comprehensive, high quality data. It can be assumed that health services research in the comingyears will be increasingly based on data linkage, i.e., the linking, or connecting, of several data sources based on suitable common key variables. A range of approaches to data collection, storage, linkage and availability exists across countries, particularly for secondary research purposes (i.e., the use of data initially collected for other purposes), such as health systems research. The main goal of this review is to develop an overview of, and gain insights into, current approaches to linking data sources in the context of health services research, with the view to inform policy, based on existing practices in high-income countries in Europe and beyond. In doing so, another objective is to provide lessons for countries looking for possible or alternative approaches to data linkage. Thirteen country case studies of data linkage approaches were selected and analyzed. Rather than being comprehensive, this review aimed to identify varied and potentially useful case studies to showcase different approaches to data linkage worldwide. A conceptual framework was developed to guide the selection and description of case studies. Information was first identified and collected from publicly available sources and a profile was then created for each country and each case study; these profiles were forwarded to appropriate country experts for validation and completion.
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Atención a la Salud , Organización de la Financiación , Reforma de la Atención de Salud , Economía y Organizaciones para la Atención de la Salud , Recolección de DatosRESUMEN
Governance is the most important enabler of health system functioning. It provides a foundation and lever for resource generation, financing, and service delivery and ensures they operate well and in coordination with the rest of the system. It also extends beyond the health system through interactions between levels and actors. While there is no unanimously accepted framework for assessing governance, country examples can be used to illustrate how governance has contributed to health systems resilience during the crisis. Good governance prior to the pandemic, underpinned by strong state capacity, political leadership and community engagement, is keyto responding resiliently during a novel infectious disease outbreak, such as COVID-19.
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COVID-19 , Salud Pública , Betacoronavirus , Brotes de Enfermedades , PandemiasRESUMEN
COVID-19 has created huge challenges. The lessons it has generated on preparing for future pandemics are clear but they are by no means the only learning. All health systems are vulnerable and there are practical steps that all countries can take, not simply to increase the resources available, but to ensure the capacity to mobilize, adapt and use those resources in different shock scenarios. The Health systems resilience during COVID-19: Lessons for building back better study gathers the evidence of how countries have managed (or not managed) to re-engineer what they do, who does what and how, and draws out the implications for future resilience. The study understands resilience as the ability of the health system to prepare for, manage and learn from a sudden and extreme disturbance. It is about maintaining the performance of core heath system functions. While the focus here is on responding to shock, it is increasingly evident that the ability to transform and evolve will also be critical in meeting long-term structural challenges to health systems.
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Servicios de Salud , Atención a la Salud , Urgencias Médicas , COVID-19 , Eficiencia , PolíticasRESUMEN
This Health system summary is based on the France Health System Review published in 2023 in the Health Systems in Transition (HiT) series. Health system summaries use a concise format to communicate central features of country health systems and analyse available evidence on the organization, financing and delivery of health care. They also provide insights into key reforms and the varied challenges testing the performance of the health system.
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Planes de Sistemas de Salud , Atención a la Salud , Estudios de Evaluación como Asunto , FranciaRESUMEN
This Health system summary is based on the Estonia: Health System Review published in 2018 in the Health Systems in Transition (HiT) series, and is significantly updated, including data, policy developments and relevant reforms as highlighted by the Health Systems and Policies Monitor (HSPM) (www.hspm.org). For this edition, key data have been updated to those available in July 2022 unless otherwise stated. Health system summaries use a concise format to communicate central features of country health systems and analyse available evidence on the organization, financing and delivery of health care. They also provide insights into key reforms and the varied challenges testing the performance of the health system.